Potential of hydrogen (pH) adjusting and dosing device for stable high-purity water

Abstract

The utility model relates to the technical field of pure water pH regulation, and discloses a stable high-purity water pH regulation dosing device which comprises a pure water tank, a medicine box is fixedly arranged above the pure water tank, an opening is formed in the top of the pure water tank, a dosing pipe is fixedly arranged on the inner wall of the opening, the dosing pipe is communicated with the medicine box, a medicine storage chamber is arranged in the medicine box, and the medicine storage chamber is communicated with the pure water tank. A medicine discharging opening is formed in the bottom of the medicine storage chamber, the medicine adding pipe is located under the medicine discharging opening, a movable cavity is formed in the medicine box, and a sealing base is arranged on the inner wall of the movable cavity in a sliding mode. The regulating agent can be quantitatively added into the pure water tank, the situation that the pH value of high-purity water fluctuates greatly due to excessive agent adding amount is avoided, if the agent adding amount is insufficient, the flow guide opening continues to be moved to the position under the agent discharging opening for agent adding till the high-purity water reaches the proper pH value, and therefore the agent adding amount can be controlled according to the pH value of the high-purity water, and the effect of controlling the pH value of the high-purity water is achieved. The condition of excessive or insufficient dosing is effectively avoided, and the stability and precision of pH regulation are improved.

Description

Technical Field

[0001] This utility model belongs to the field of pure water pH adjustment technology, specifically, it relates to a stable high-purity water pH adjustment and dosing device. Background Technology

[0002] Pure water, also known as high-purity water, refers to water with extremely high chemical purity. It is mainly used in fields such as biology, chemical engineering, metallurgy, aerospace, and power. However, it has very high requirements for water purity, so its most common application is in the electronics industry, such as electronic chip manufacturing.

[0003] In the application of high-purity water, it is usually necessary to adjust the pH value of the high-purity water to meet specific process requirements. An unsuitable pH value of high-purity water may affect the production quality. However, the current dosing methods are difficult to control the dosage well, which can easily lead to overdosing or underdosing, resulting in large fluctuations in the pH value of the high-purity water, making it difficult to meet the high pH accuracy requirements of processes.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] To address the problem that current dosing methods often fail to effectively control the dosage, leading to overdosing or underdosing and resulting in significant pH fluctuations in high-purity water, the basic concept of this invention is as follows:

[0006] A stable high-purity water pH adjustment dosing device includes a pure water tank, a medicine tank fixedly mounted above the pure water tank, an opening at the top of the pure water tank, and a dosing pipe fixedly mounted on the inner wall of the opening, the dosing pipe being connected to the medicine tank, a medicine storage chamber inside the medicine tank, a dispensing port at the bottom of the medicine storage chamber, the dosing pipe being located directly below the dispensing port, a movable cavity inside the medicine tank, a sealing seat slidably mounted on the inner wall of the movable cavity, a guide port on the sealing seat, a rotating shaft rotatably mounted on the bottom inner wall of the movable cavity, a cam fixedly connected to the outer wall of the rotating shaft, the cam contacting one side of the outer wall of the sealing seat, and a drive motor fixedly mounted on the top inner wall of the movable cavity, the output shaft of the drive motor being connected to the top of the rotating shaft via a coupling.

[0007] In a preferred embodiment of this utility model, a symmetrically arranged guide rod is fixedly connected to the inner wall of one side of the movable cavity, and a symmetrically arranged guide groove is opened on one side of the sealing seat, with the guide rod slidably connected to the inner wall of the guide groove.

[0008] In a preferred embodiment of this utility model, symmetrically arranged springs are installed on one side of the inner wall of the movable cavity, one end of the spring is connected to the outer wall of one side of the sealing seat, and the spring is sleeved on the guide rod.

[0009] In a preferred embodiment of this utility model, the top of the pure water tank is provided with a water inlet, which is connected to the pure water tank.

[0010] In a preferred embodiment of this utility model, the top of the medicine box is provided with a medicine filling port, which is connected to the medicine storage chamber.

[0011] In a preferred embodiment of this utility model, a pusher plate is slidably provided on the inner wall of the medicine storage chamber, and symmetrically arranged connecting rods are fixedly connected to one side of the pusher plate.

[0012] In a preferred embodiment of this utility model, the medicine box has an opening on one side, the medicine storage chamber is connected to the opening, and a sealing plate is slidably provided on the inner wall of the opening, the sealing plate being fixedly connected to the end of the connecting rod.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] This invention addresses the issue of pH adjustment in high-purity water. A drive motor, rotating shaft, and cam move a sealing seat, aligning the guide port on the sealing seat directly below the dispensing port. This allows the adjusting agent in the storage chamber to flow through the dispensing port and guide port into the dosing pipe, and then into the pure water tank. The adjusting agent mixes with the high-purity water in the tank, thus adjusting the pH. When the cam rotates away from the sealing seat, the sealing seat returns to its initial position, sealing the dispensing port. This ensures the adjusting agent is added quantitatively to the pure water tank, preventing excessive dosage and large pH fluctuations. If the dosage is insufficient, the guide port is moved back to directly below the dispensing port for further addition until the high-purity water reaches the appropriate pH. This allows for precise control of the dosage based on the high-purity water's pH, effectively preventing over- or under-dosing and improving the stability and accuracy of pH adjustment.

[0015] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the overall structure of a stable high-purity water pH adjustment and dosing device according to the present invention;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the dosing tank of a stable high-purity water pH adjustment dosing device according to the present invention;

[0019] Figure 3This is a schematic diagram of the cross-sectional structure of the medicine tank and sealing seat of the pH adjustment dosing device for stable high-purity water according to this utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the sealing seat of a stable high-purity water pH adjustment and dosing device according to the present invention.

[0021] In the diagram: 1. Pure water tank; 2. Medicine tank; 3. Dosing pipe; 4. Water inlet; 5. Sealing plate; 6. Dosing port; 7. Medicine storage chamber; 8. Movable cavity; 9. Sealing seat; 10. Rotating shaft; 11. Cam; 12. Drive motor; 13. Guide rod; 14. Spring; 15. Dosing port; 16. Flow guide port; 17. Push plate; 18. Connecting rod; 19. Guide groove. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0023] like Figures 1 to 4 As shown

[0024] A stable high-purity water pH adjustment and dosing device includes a pure water tank 1, a chemical tank 2 fixedly mounted on top of the pure water tank 1, an opening at the top of the pure water tank 1, and a dosing pipe 3 fixedly mounted on the inner wall of the opening, the dosing pipe 3 being connected to the chemical tank 2, a chemical storage chamber 7 inside the chemical tank 2, a dosing inlet 15 at the bottom of the chemical storage chamber 7, the dosing pipe 3 being located directly below the dosing inlet 15, a movable cavity 8 inside the chemical tank 2, a sealing seat 9 slidably mounted on the inner wall of the movable cavity 8, a guide port 16 on the sealing seat 9, and a rotating shaft 10 rotatably mounted on the inner wall of the bottom of the movable cavity 8, the outer wall of the rotating shaft 10 being fixedly connected to... A cam 11 is connected to the outer wall of one side of the sealing seat 9. A drive motor 12 is fixedly installed on the inner wall of the top of the movable cavity 8. The output shaft of the drive motor 12 is connected to the top of the rotating shaft 10 via a coupling. When it is necessary to adjust the pH value of the high-purity water, the drive motor 12 is started to drive the rotating shaft 10 to rotate. The rotating shaft 10 drives the cam 11 to rotate. When the cam 11 rotates to contact one side of the sealing seat 9, it pushes the sealing seat 9 to move, so that the guide port 16 on the sealing seat 9 moves to directly below the drug inlet 15. At this time, the adjusting agent in the drug storage chamber 7 can pass through. The solution flows through the inlet 15 and the guide port 16 into the dosing pipe 3, and then through the dosing pipe 3 into the pure water tank 1, allowing the adjusting agent to mix with the high-purity water in the pure water tank 1, thereby adjusting the pH value of the high-purity water. Symmetrically arranged guide rods 13 are fixedly connected to one side of the inner wall of the movable cavity 8. Symmetrically arranged guide grooves 19 are opened on one side of the sealing seat 9. The guide rods 13 are slidably connected to the inner wall of the guide grooves 19. Symmetrically arranged springs 14 are installed on one side of the inner wall of the movable cavity 8. One end of the spring 14 is connected to the outer wall of one side of the sealing seat 9. The spring 14 is sleeved on the guide rod 13. When the cam 11... When rotated to the side away from the sealing seat 9, the sealing seat 9 is reset to its initial position under the action of the guide rod 13, the guide groove 19 and the spring 14. The sealing seat 9 can also seal the inlet 15, so that the adjusting agent can be added to the pure water tank 1 in a metered manner, avoiding excessive dosage and large fluctuations in the pH value of the high-purity water. If the dosage is insufficient, the rotating shaft 10 continues to drive the cam 11 to rotate, so that the cam 11 pushes the sealing seat 9 to move the guide port 16 to directly below the inlet 15 to continue adding the agent until the high-purity water reaches the appropriate pH value.

[0025] In a specific embodiment, a water inlet 4 is provided on the top of the pure water tank 1, and the water inlet 4 is connected to the pure water tank 1. High-purity water is added into the pure water tank 1 through the water inlet 4. A medicine inlet 6 is provided on the top of the medicine tank 2, and the medicine inlet 6 is connected to the medicine storage chamber 7. Adjusting agents are added into the medicine storage chamber 7 through the medicine inlet 6. A pusher plate 17 is slidably provided on the inner wall of the medicine storage chamber 7. A symmetrically arranged connecting rod 18 is fixedly connected to one side of the pusher plate 17. A movable opening is opened on one side of the medicine tank 2, and the medicine storage chamber 7 is connected to the movable opening. A sealing plate 5 is slidably provided on the inner wall of the movable opening. The sealing plate 5 is fixedly connected to the end of the connecting rod 18.

[0026] The implementation principle of the stable high-purity water pH adjustment and dosing device in this embodiment is as follows:

[0027] In practical use, high-purity water is added to the pure water tank 1 through the water inlet 4, and adjusting agent is added to the storage chamber 7 through the chemical addition port 6. When it is necessary to adjust the pH value of the high-purity water, the drive motor 12 is started to drive the rotating shaft 10 to rotate. The rotating shaft 10 drives the cam 11 to rotate. When the cam 11 rotates to contact one side of the sealing seat 9, it pushes the sealing seat 9 to move, so that the guide port 16 on the sealing seat 9 moves directly below the chemical inlet 15. At this time, the adjusting agent in the storage chamber 7 can flow into the chemical addition pipe 3 through the chemical addition port 15 and the guide port 16, and then flow into the pure water tank 1 through the chemical addition pipe 3, so that the adjusting agent and the pure water tank 1 are in harmony. The high-purity water is mixed to adjust its pH value. When the cam 11 rotates to the side away from the sealing seat 9, the sealing seat 9 is reset to its initial position under the action of the guide rod 13, guide groove 19 and spring 14. The sealing seat 9 can seal the inlet 15, so that the adjusting agent can be added to the pure water tank 1 in a metered manner, avoiding excessive dosage and large fluctuations in the pH value of the high-purity water. If the dosage is insufficient, the rotating shaft 10 continues to drive the cam 11 to rotate, so that the cam 11 pushes the sealing seat 9 to move the guide port 16 to directly below the inlet 15 to continue adding the agent until the high-purity water reaches the appropriate pH value.

Claims

1. A stable high-purity water pH adjustment dosing device, comprising a pure water tank (1), characterized in that, The pure water tank (1) is fixedly provided with a medicine tank (2) above, the pure water tank (1) is provided with an opening in the top, and the inner wall of the opening is fixedly provided with a dosing pipe (3), the dosing pipe (3) is communicated with the medicine tank (2), the medicine tank (2) is provided with a medicine storage chamber (7) inside, the bottom of the medicine storage chamber (7) is provided with a lower medicine outlet (15), the dosing pipe (3) is located directly below the lower medicine outlet (15), the medicine tank (2) is provided with a movable cavity (8) inside, the movable cavity (8) is provided with a sealing seat (9) which is slidably arranged on the inner wall, the sealing seat (9) is provided with a flow guide opening (16) on the upper wall, the movable cavity (8) is provided with a rotating shaft (10) which is rotatably installed on the bottom inner wall, the rotating shaft (10) is fixedly connected with a cam (11) on the outer wall, the cam (11) is in contact with the outer wall of one side of the sealing seat (9), the movable cavity (8) is provided with a driving motor (12) which is fixedly installed on the top inner wall, and the output shaft of the driving motor (12) is connected to the top end of the rotating shaft (10) through a shaft coupling.

2. The pH regulating and dosing device for stable high-purity water according to claim 1, characterized in that, The movable cavity (8) is provided with symmetrically arranged guide rods (13) which are fixedly connected to the inner wall of one side, the sealing seat (9) is provided with symmetrically arranged guide grooves (19) which are formed in the outer wall of one side, and the guide rods (13) are slidably connected to the inner wall of the guide grooves (19).

3. The stable high-purity water pH adjusting chemical dosing device according to claim 2, characterized in that, The movable cavity (8) is provided with symmetrically arranged springs (14) which are installed on the inner wall of one side, one end of the spring (14) is connected to the outer wall of one side of the sealing seat (9), and the spring (14) is sleeved on the guide rod (13).

4. The pH regulating and dosing device for stable high-purity water according to claim 1, characterized in that, The pure water tank (1) is provided with a water inlet (4) in the top, and the water inlet (4) is communicated with the pure water tank (1).

5. The stable high-purity water pH-adjusting chemical dosing device according to claim 1, characterized in that, The medicine tank (2) is provided with a medicine adding opening (6) in the top, and the medicine adding opening (6) is communicated with the medicine storage chamber (7).

6. The stable high-purity water pH-adjusting chemical dosing device according to claim 1, characterized in that, The medicine storage chamber (7) is provided with a push plate (17) which is slidably arranged on the inner wall, and the push plate (17) is fixedly connected with symmetrically arranged connecting rods (18) on one side.

7. The stable high-purity water pH-adjusting chemical dosing device according to claim 6, characterized in that, The medicine tank (2) is provided with a movable opening in one side, the medicine storage chamber (7) is communicated with the movable opening, and the movable opening is provided with a sealing plate (5) which is slidably arranged on the inner wall, and the sealing plate (5) is fixedly connected to the end portion of the connecting rod (18).

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